Features Durable Double-Sided PCB: Constructed with a 1.6mm thick double-sided board for enhanced sturdiness and a long service life Efficient Heat Dissipation: Features a large heat dissipation area, ensuring stable performance and extended running time during operation Compact and Portable Design: Lightweight and small size make this filter module easy to use, carry, and store without compromising performance Precise Frequency Range: Operates effectively at 403±2.5MHz with both input and output impedance of 50 Ω, ensuring optimal signal filtering Safety Usage Guidelines: Important to operate within specified frequency limits to ensure secure and reliable functionality Features: 1、It has a 1.6mm thick PCB double sided board, long service life, and is sturdy and . 2、This band pass filter module has a large heat dissipation area, stable and long running time. 3、This RF band pass filter module is easy to use, carry and store, and has good performance and small size. 4、The working frequency of this bandpass filter module is 403±2.5MHz, and the output and input Impedance are both 50 Ω. 5、Please carefully note that do not use outside the frequency range for security purpose. Specification: Item Type: Filter Module Material: PCB Color: Green + Gold Working Frequency: 403±2.5MHz Insertion Loss: 1.7dB Out-of-band Supprion: 60dBat50MHz Input Impedance: 50 Ω Output Impedance: 50 Ω Maximum Input Signal Strength: 20dbm (100MW) Input Interface: SMA-K (SMA Female) Output Interface: SMA-K (SMA Female) Purpose: Filter Package List: 1 x Filter Module Note: Do not use outside the frequency range. Package List 1 x Filter Module